A MFC making method for using aerobic microbe as the cathode catalyzer

A cathode catalyst, aerobic microorganism technology, applied in biochemical fuel cells, battery electrodes, final product manufacturing, etc., can solve problems such as inappropriateness

Inactive Publication Date: 2008-08-13
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, it adds M9 electronic intermediary to the system during start-up and operation, which is inappropriate in practical applications

Method used

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  • A MFC making method for using aerobic microbe as the cathode catalyzer
  • A MFC making method for using aerobic microbe as the cathode catalyzer
  • A MFC making method for using aerobic microbe as the cathode catalyzer

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Embodiment Construction

[0019] Below in conjunction with accompanying drawing, the present invention will be further described:

[0020] 1. Materials and methods

[0021] 1.1 Reactor setup and start-up

[0022] to combine figure 1 , the reactor device of this embodiment is different from the single-cell structure of the air cathode MFC in the past. The reactor is a double-cell system composed of a cathode chamber and an anode chamber (the cathode chamber is set up separately to facilitate the growth of microorganisms on the cathode), and the middle is composed of cations. The exchange membrane is separated, and the cathode and anode are respectively placed on both sides of the reactor (length 4cm, width 1.5cm, height 6cm, effective volume 30mL) made of plexiglass. figure 1 The middle reactor is provided with a water inlet 1, a water outlet 2, a reference electrode 3 and a carbon fiber brush electrode 4. The electrode material is conductive carbon fiber, the average diameter of the fiber filament i...

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Abstract

The present invention provides an MFC preparing method which uses the aerobic microorganism as the cathode catalyst, the catalyst which adopts the microorganism as the cathode successfully actuates the biological cathode biological fuel cell which has a double-cell structure, the electrode material is conductive carbon fiber and the anode takes the glucose as substrate, the cathode takes NaHCO3 as inorganic carbon source and the perforated pipe aerates. The result showed that after 9d actuation the battery voltage gets to 0.324V(R=500 omega), the maximum power density is 24.7W / m<3> when the aeration amount is 300Ml / min, as the metal catalyst is saved and the fabricating cost of MFC is reduced the application of MFC in project is provided with a novel approach and possibility.

Description

(1) Technical field [0001] The invention relates to the technical field of designing microbial fuel cells, in particular to a microbial fuel cell using aerobic microorganisms as a cathode catalyst. (2) Background technology [0002] A microbial fuel cell is a device that uses microorganisms as an anode catalyst to oxidize organic matter to generate electricity. During the reaction, the substrate is oxidized by bacteria at the anode and electrons are generated, and the electrons are transferred to the cathode through an external circuit, and together with protons and oxygen, water is generated at the cathode. Due to the ability to recover clean energy while treating sewage, microbial fuel cells (MFCs) have attracted widespread interest and quickly become a research hotspot. [0003] The current MFC is usually divided into two types: liquid cathode and air cathode. The liquid cathode electron acceptor can be a substance with a high redox potential, but the catholyte is mostly...

Claims

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Application Information

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IPC IPC(8): H01M8/16H01M4/86H01M4/90
CPCY02E60/50Y02P70/50
Inventor 张金娜赵庆良尤世界姜珺秋
Owner HARBIN INST OF TECH
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